Coaxial electrospun TiO2/ZnO core-sheath nanofibers film: Novel structure for photoanode of dye-sensitized solar cells

被引：58
作者：
Du, Pingfan [1 ,2 ]
Song, Lixin [1 ]
Xiong, Jie [1 ]
Li, Ni [1 ]
Xi, Zhenqiang [2 ]
Wang, Longcheng [2 ]
Jin, Dalai [2 ]
Guo, Shaoyi [2 ]
Yuan, Yongfeng [2 ]
机构：
[1] Zhejiang Sci Tech Univ, Key Lab Adv Text Mat & Mfg Technol, Minist Educ, Hangzhou 310018, Zhejiang, Peoples R China
[2] Zhejiang Sci Tech Univ, Ctr Mat Engn, Hangzhou 310018, Zhejiang, Peoples R China
来源：
ELECTROCHIMICA ACTA | 2012年 / 78卷
关键词：
Dye-sensitized solar cells; Core-sheath; Nanofibers; Coaxial electrospinning; NANOPOROUS ELECTRODE; ENERGY CONVERSION; CARBON NANOTUBE; ZNO; PERFORMANCE; FABRICATION; EFFICIENCY; TRANSPORT; FIBERS; RECOMBINATION;
D O I：
10.1016/j.electacta.2012.06.034
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Novel TiO2/ZnO core-sheath nanofibers (NFs) film was fabricated through an extraordinary coaxial electrospinning technique. Dye-sensitized solar cells (DSSCs) were assembled using the TiO2/ZnO NFs film as photoanode. FESEM, TEM, FTIR, XRD, XPS and UV-vis were used to characterize the NFs electrode film. Photocurrent-voltage (I-V) characteristic, incident photo-to-current conversion efficiency (IPCE) spectrum, and electrochemical impedance spectroscopy (EIS) measurements were performed to evaluate the DSSCs performance. The results reveal that the DSSCs based on the TiO2/ZnO core-sheath NFs are superior to their bare TiO2 NFs-based counterparts. Compared with the latter, the overall energy conversion efficiency was enhanced from 4.47 to 5.17%. And the possible mechanism for this enhancement was discussed. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：392 / 397
页数：6
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